Graph control causes general protection fault when changing axis range (64bit)

Hello,

i wrote a 32bit application which i'm porting to 64bit now and stumbled across a problem with the graph control.

The Graph axsis are set to editable so that the user can change the axis range manually at runtime. The 32bit version has no problem here, but the 64bit  version is crashing  with a general protection fault at the source line with RunUserInterface().

Is there a compiler option/value or something i should be aware of when swithing to 64bit that should be set?

Or is this just a problem with the code of the control?

I tried it with LabWindows v13.0.2 (278)  and v13.0.1, running under Windows 7 64bit.

Thanks.